Seline

Seline is an AI assistant that blends chat, visual tools, and a local knowledge base into a single desktop app. It runs mostly on your machine—your documents stay private, your conversations persist across sessions, and you can switch between LLM providers without leaving the app.

Highlights

Chat with configurable agents and keep long-running sessions organized.
Enhance prompts with grounded context from your synced folders and memories.
Generate and edit images, then assemble them into videos.
Run vector search locally with LanceDB for fast, private retrieval.
Run commands in your synced/indexed folders

Updates: - 3rd provider added. now can use antigravity models and google antigravity subscription

Supported Platforms

Windows (installer builds are available).
macOS is supported today; DMG distribution is coming soon. You can build macOS packages from source in the meantime.
Linux, not tested.

Prerequisites

For end users: none beyond the OS installer.

For developers:

Node.js 20+ (22 recommended for Electron 39 native module rebuilds)
npm 9+
Windows 10/11 or macOS 12+

Installation

npm install

Development Workflow

npm run electron:pack && npm run electron:dev

This runs the Next.js dev server and launches Electron against http://localhost:3000.

Build Commands

# Windows installer + portable
npm run electron:dist:win

# macOS (DMG/dir)
npm run electron:dist:mac

For local packaging without creating installers, use npm run electron:pack. See docs/BUILD.md for the full pipeline.

Troubleshooting

Native module errors (better-sqlite3, onnxruntime-node): run npm run electron:rebuild-native before building.
Black screen in packaged app: verify .next/standalone and extraResources are correct; see docs/BUILD.md.
Missing provider keys: ensure ANTHROPIC_API_KEY or OPENROUTER_API_KEY is configured in settings or .env.
Embeddings mismatch errors: reindex Vector Search from Settings or run POST /api/vector-sync with action: "reindex-all".

Documentation

docs/ARCHITECTURE.md - system layout and core flows
docs/AI_PIPELINES.md - LLM, embeddings, and tool pipelines
docs/DEVELOPMENT.md - dev setup, scripts, tests, and build process
docs/API.md - internal modules and API endpoints

seline